What is the benefit of Cookie over server side storage?

What is the benefit of Cookie over server side storage?

References

Reference NO 1

http://stackoverflow.com/questions/15197860/what-is-the-benefit-of-cookie-over-server-side-storage

Reference NO 2

http://stackoverflow.com/questions/14626082/is-web-storage-preferable-over-cookies-for-storing-sessionid

Reference NO 3

http://sixrevisions.com/html/introduction-web-storage/

Reference NO 4

http://www.cookiecentral.com/n_cookie_faq.htm

Reference NO 5

http://blog.newrelic.com/2012/09/18/html5-web-storage-cookies-are-so-1994/

Reference NO 6

http://en.wikipedia.org/wiki/HTTP_cookie

Reference NO 7

http://www.whatarecookies.com/

Reference NO 8

http://michael-coates.blogspot.com/2010/07/html5-local-storage-and-xss.html